New blog post by Loris Ercole (CECAM):
Using Spack on Top of EESSI: Best of Both Worlds
www.eessi.io/docs/blog/20...
#HPC #community
18.02.2026 17:19
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New blog post by Loris Ercole (CECAM):
Using Spack on Top of EESSI: Best of Both Worlds
www.eessi.io/docs/blog/20...
#HPC #community
⏳ 3 days left. Standard registration for HPSFcon closes February 27.
📆 View the full schedule: hubs.la/Q044kTM20
🎫 Register now before rates increase: hubs.la/Q044kV8-0
HPSF Year in Review: Spack 📦
Spack delivered major usability and dependency management improvements with the 1.0 and 1.1 releases in 2025. In 2026 the focus is on refining workflows and improving support for shared Spack deployments.
Check out the full recap here:
hubs.la/Q03-_8nP0
HPSF Year in Review: Modules 🧰
Modules clarified project structure and released version 5.6 with a new hierarchy mechanism in 2025. In 2026 the project is growing its steering committee and delivering performance improvements with closer ties to Spack and EESSI.
hubs.la/Q03-_dXF0
We had a great time at #FOSDEM at the HPC, Big Data & Data Science devroom & dinner!
If you missed Xavier Delaruelle’s talk on HPSF, view it on our YouTube channel: youtu.be/-DdFXt5wLL0?...
Photos provided by @boegel.bsky.social 📸
The recording of my "How to Make Package Managers Scream" talk at FOSDEM'26 is now available, enjoy!
youtu.be/PBlDHlFnzGo
Repeat this five times fast!
"Ask in the spack slack for help to install spark in a stack using a spec"
Great talk always KH!
#hpc #ai #cloud
Spack v1.1.1 is out!
This is a patch release with some notable improvements:
* Python 3.14 support
* Better error messages for missing/deprecated versions
* Major performance improvements for the solver
Read it all in the release notes! #hpc #spack
github.com/spack/spack/...
The best part about organizing the #HPC devroom at #FOSDEM is that I don't need to wade through half of the schedule, since I already know where I'll be spending my time.
Really helpful, since FOSDEM'26 has over 1,000 talks in a single weekend! 😱 😎 🤩
fosdem.org/2026/schedule/
#FOSS #community
Musl support isn’t what it should be, but when we beef up how we model libc this should be easier.
New blog post: Using Spack on top of EESSI: A Proof of Concept
Can we convince Spack to reuse software installations available in EESSI to resolve required dependencies when installing QuantumESPRESSO?
www.eessi.io/docs/blog/20...
@spackpm.bsky.social
Schedule for #HPC, Big Data, and Data Science devroom at FOSDEM'26 (on Sun 1 Feb 2026, in Brussels) has been published: fosdem.org/2026/schedul...
This is an absolutely spectacular agenda. Congratulations to @boegel.bsky.social for once again putting together a great #FOSDEM devroom for those interested in #HPC, #BigData, and #DataScience and organizing the reviews.
It’s safe to assume that the HPC scheduling space is going to be in a state of Flux for quite some time to come…
(I see what I did there. With consummate apologies to @vsoch.bsky.social and @tgamblin.bsky.social in advance 🤣)
the audacity of github to charge me to use my own self-hosted runners
resources.github.com/actions/2026...
"With HPSF, the #HPC community now has what I consider to be the largest and healthiest forum for developing and nurturing open source software that it ever has," says
@bradcray.bsky.social in Chapel blog: chapel-lang.org/blog/posts/1...
The CFP for HPSFCon 2026 is open 🤩
We're looking for sessions on:
- Building and Sustaining Communities 🔨
- User and Contributor Experiences 🤝
- Project and Ecosystem Growth 📈
More details on our blog: hpsf.io/blog/2025/hp...
PSA, if you’re looking to do something like this, I highly recommend using @spackpm.bsky.social to manage your build environment. You can build NCEP’s GRIB2, BUFR, and “ip” libraries, along with other dependencies like Proj. Would be much harder without it.
Jeff Geerling at a table with two small mini-clusters along with Texas Tech giveaway items.
Made my day when @jeffgeerling.com stopped by the Texas Tech #SC25 booth to take a look at our x86 mini-clusters that run Warewulf, Ansible, Spack, and complete scientific #HPC applications with the same software stack as on our main clusters.
We’re so excited to share that HPSF has been recognized as the Best HPC Collaboration in the 22nd edition of the HPCwire Readers’ Choice Awards! 🏆
Thank you to everyone who voted for HPSF. We’re excited for what the future of HPC holds!
hpsf.io/blog/2025/hp...
HPSF 🤝 SC25
Come say hi at booth 6134!
HPSFCon 2026 Call for Proposals are OPEN! 📄
🎤 Submit talks, discussions, lightning sessions, posters that are moving HPC forward
📅 Deadline: January 11, 2026
👉 Submit your proposal here: events.linuxfoundation.org/hpsf-confere...
💭 Learn more about what we are looking for: hpsf.io/blog/2025/hp...
So proud to be recognized as the Readers' Choice for Best HPC Collaboration in HPCwire!
Thank you once again to everyone who voted, and everyone who visited us at SC this week! 💚 💙 ❤️
Spack v1.1.0 and spack-packages v2025.11.0 are out!
🥳Features:
🏗️ Compiler control (unmixing, %%)
📦 Improved externals
⬇️ Git fetching
😌 Configurable config
👩🏻🔬Experimental:
👩🏻💻 New parallel console UI
🏎️ Concretization caching
More here!
github.com/spack/spack/...
the meme of DW from Arthur looking extremely tired and smiling
Me in the airport after not having slept, passing -mcmodel=large to the compiler for the fifth time hoping it fixes my GOT relocation issues
A Fedora fork called M’linux
ASP and dependency solving:
* APT: arxiv.org/pdf/1109.0113 (simpler encoding -- fits in 30 lines at github.com/potassco/asp...)
* Spack: arxiv.org/pdf/2011.07851
ASP:
* Relation to Prolog: See end of 1.8 and paragraph in 3.5
* Lifschitz and Nimela articles here: ojs.aaai.org/aimagazine/i...
* Lifschitz book is very clear in comparison to others (I find the description of ASP solvers in 1.3 to be very easy to understand): www.cs.utexas.edu/~vl/teaching...
Constraints in LP:
* 2.8 in Fifty Years of Prolog and Beyond is good and has lots of pointers: arxiv.org/pdf/2201.10816
* and dl.acm.org/doi/pdf/10.1..., but it came after Prolog II and while Prolog III was in development
